Fluorspar

noun

Definitions

Noun
  1. 1
    Synonym of fluorite. uncountable, usually
  2. 2
    a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine wordnet

Etymology

Blend of fluorite + spar (“mineral, crystal”).

Next best steps

Mini challenge

Unscramble this word: fluorspar